Merge branch 'sd/t3200-typofix' into maint

Test fix.

* sd/t3200-typofix:
  branch test: fix invalid config key access

t/t3200-branch.sh

@@ -338,7 +338,7 @@ test_expect_success 'git branch -m s/s s should work when s/t is deleted' '
 
 test_expect_success 'config information was renamed, too' '
 	test $(git config branch.s.dummy) = Hello &&
-	test_must_fail git config branch.s/s/dummy
+	test_must_fail git config branch.s/s.dummy
 '
 
 test_expect_success 'deleting a symref' '